Composition containing spinel-type metal oxides

Abstract

A composition of styrene butadiene rubber containing spinel type metal oxides and will find application for insulating layers and supports in flexible antennas that can be worn close to the human body without adversely affecting it. The composition contains spinel-type metal oxides, in which the ingredients per 100 mass parts of styrene butadiene rubber/SBR/are: zinc oxide from 1 to 5 mass parts, stearic acid from 1 to 2 mass parts, filler from 25 to 75 mass parts, vulcanization accelerator/TBBS/—from 1 to 1.5 mass parts, sulfur from 1.5 to 2.0 and the filler is spinel type metal oxides and is Zn0.53Co0.48Mn0.01Cr2O4. The spinel type of metal oxides has the following chemical composition in weight percentages: Cr—62, 10; Mn—0, 19; Co—16, 92; Zn—20, 79, and particle sizes range from submicron 0.2-0.5 μm to 2-3 μm.

1 . A composition comprising: spinel-type metal oxides, wherein the ingredients of 100 mass parts of styrene butadiene rubber SBR are: zinc oxide from 1 to 5 mass parts, stearic acid from 1 to 2 mass parts, filler from 25 to 75 mass parts TBBS vulcanization accelerator—from 1 to 1.5 mass parts, sulfur from 1.5 to 2.0, and the filler is a spinel type of metal oxides and is Zn 0.53 Co 0.48 Mn 0.01 Cr 2 O 4 . 
     
     
         2 . The composition containing spinel-type metal oxides, according to  claim 1 , wherein the chemical composition of the spinel-type metal oxides in weight percentages is: Cr—62, 10; Mn—0, 19; Co—16, 92; Zn—20, 79, and the particle sizes are from submicron 0.2-0.5 μm to 2-3 μm.